Protector-plate for edges of concrete steps.



J. G. BRAUN. PROTECTOR PLATE FOR EDGES OP CONCRETE STEPS.

APPLICATION FILED JAN. 29, 1909.-

Patented June 7, 1910.

JACOB G- ZBRAUN, OF CHICAGO, ILLINOIS.

I'BOTECTOR-PLA'IE FOR EDGES 01" CONCRETE STEPS.

Specification of Letters Patent.

Patented J une '7, 1910.

Application filed January 29; 1909. Serial No. 474,972.

To all whomltmay concern:

Be it-"lmownthat I,- Jaoon G. Baum, a

citizen of the United States, residing at Chicago, in the county of Cookand State of I111- 1101s, have invented certain new and usefulImprovements in Protector-Plates for the Edges of Concrete or CementSteps or the Like, ofwhich the following is a spec1fication.

This invention relates to improvements in protector plates for the edgesof concrete or cement steps or the like, and the primary object of theinvention is to provide an improved device of this character which Wlllnot only protect the edge of the steps but will also preventa personfrom slipping.

A further object is to provide an improved device of this characterwhich will be ple, durable and cheap in construction'and effective andefiicient in operation.

To the attainment of these ends and the accomplishment of other new anduseful objects, as will appear, the invention consists in the featuresof novelty in the construction, combination and arrangement of theseveral parts hereinafter more fully described and claimed and shown inthe accompanying drawing, illustrating an ex cmplification of theinvention and in which- Figure 1 is a detail sectional view of a portionof a stairway having a protector plate for the edges of the step sccurcdthereto, constructed in accordance with the principles of thisinvention. Fig. 2 is a detail perspective view of the protector.

Referring more particularly to the drawing and in the presentexemplification of the invention, the numeral 10 designates the tread ofthe step, and 11 the upright or riser. The riser is arranged adjacentthe front edge of the tread but spaced therefrom, and the riser may beconnected by a suitable angle iron 12, which is secured in position byordinary fastening bolts or rivets 13. The steps thus formed maybesupported by the ordinary stringer 14 and all of-the parts arepreferably constructed of metal.

Secured to the outer front face of each riser and adjacent the topthereof is a detachable protector plate, which in the presentexemplification of the invention is in the form of a rolled channel ironhaviu a U-sha ed body portion 15, with later'fily space projectingportions 16, 17. Dcpcnding from the extremity of the laterallyprojecting portion 16 is a flange 18, by means of which the protectorplate is adapted to be attached to the upright or riser withoutdisturbing the position of said riser or its connections with othermembers of the stairway. Such attachment is secured preferably by meansof fastening bolts or rivets 19, said bolts or rivets being arranged inbolt holes and extending successively through the protector, riser andangle iron 12 to rigidly secure said parts together.

The protector is made with the cross-section shown in the drawing sothat it may be produced by simple rolling mill operation, and whensecured in position the portion 16 thereof will hold the body portion 15projected beyond the face of the riser to form an overhanging ledge andthe laterally projecting portion 17 will be spaced above the up or faceof the tread 10.

Vhcn the rotectors are secured in posi tion they wil ooiipera-te withthe respective risers at the rear ends of the steps to form a channelfor the reception of the plastic material or asphalt 20, which forms thestep. Sullicient material is placed in the channel thus formed so thatthe u per surface thereof will be substantially ush with the uppersurface of the laterally pro ject-ing portion 17 and the upper face ofthis portion 17 is roughened or corrugated as at 21 by forming aplurality of spaced ribs on the upper face which extend longitudinallythereof.

l-Vith this improved construction itwill be apparent that the cement orasphalt 20 will be held against di lacementand the front edges thereofwill e protected at the same time the corrugated or roughened por' tion21 of the frame 17 will preventslipping as a person ascends or descends.

\Vhile in the present exemplification of the invention the. protector isshown in the form of a channel iron, it is to be understood that anyother form of protector may be provided, which may be embedded in thefront edge of the cement or asphalt step, which protector may beroughened or corrugatcd to preventslipping. It is also to be understoodthat although the protector is shown as being applied to the front edgeof steps, it may be employed in any other manner, such, for instance, ason curb stones or cement walks and the like.

Whatis claimed as new is 1. The combination with a step comprising atread, a riser arranged adjacent. to the between. said tree and riser, oa protector plate provided with an e.tt: 1chi,ng flange, and means forsecurin and user, angle bar and flanged plate rigi 1y together.

2, The combination with a steg comprising a tread, a riser adjacent toat spaced from the front edge of the tread, and an angle bar for closingthe space between said tread and. riser, of a protector plate providedwith an attaching flange, and means rigid ly securing together saidriser en la bar and the flange of said protector ple te, said meanscomprising fasteners extending 15 throu h quid members.

In estimony whereof I have signed my name to this specification, in theresence of two subscribing witnesses, on t is 20th day of January A. D.1909.

JACOB G. BRAUN Witnesses:

J. H. JooHUM, Jr., A. L Srnmxme.

